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        <span>python——入门复习数据序列</span>
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class="string">三引号形式的字符串支持换行。</span></span><br><span class="line"><span class="string"></span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"></span><br><span class="line">c = <span class="string">&quot;I&#x27;m Tom&quot;</span></span><br><span class="line">d = <span class="string">&#x27;I\&#x27;m Tom&#x27;</span></span><br><span class="line">print(c)</span><br><span class="line">print(d)</span><br><span class="line"></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="string">切片是指对操作的对象截取其中一部分的操作。**字符串、列表、元组**都支持切片操作。</span></span><br><span class="line"><span class="string">序列[开始位置下标:结束位置下标:步长]</span></span><br><span class="line"><span class="string">步长是选取间隔，正负整数均可，默认步长为1。</span></span><br><span class="line"><span class="string">左闭右开</span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"></span><br><span class="line">name = <span class="string">&quot;abcdefg&quot;</span></span><br><span class="line">print(name[<span class="number">2</span>:<span class="number">5</span>:<span class="number">1</span>])  <span class="comment"># cde</span></span><br><span class="line">print(name[<span class="number">2</span>:<span class="number">5</span>])  <span class="comment"># cde</span></span><br><span class="line">print(name[:<span class="number">5</span>])  <span class="comment"># abcde</span></span><br><span class="line">print(name[<span class="number">1</span>:])  <span class="comment"># bcdefg</span></span><br><span class="line">print(name[:])  <span class="comment"># abcdefg</span></span><br><span class="line">print(name[::<span class="number">2</span>])  <span class="comment"># aceg</span></span><br><span class="line">print(name[:<span class="number">-1</span>])  <span class="comment"># abcdef, 负1表示倒数第一个数据</span></span><br><span class="line">print(name[<span class="number">-4</span>:<span class="number">-1</span>])  <span class="comment"># def</span></span><br><span class="line">print(name[::<span class="number">-1</span>])  <span class="comment"># gfedcba</span></span><br><span class="line"></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="string">find()：检测某个子串是否包含在这个字符串中，如果在返回这个子串开始的位置下标，否则则返回-1。</span></span><br><span class="line"><span class="string">字符串序列.find(子串, 开始位置下标, 结束位置下标)</span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"></span><br><span class="line">mystr = <span class="string">&quot;hello world and itcast and itheima and Python&quot;</span></span><br><span class="line"></span><br><span class="line">print(mystr.find(<span class="string">&#x27;and&#x27;</span>))  <span class="comment"># 12</span></span><br><span class="line">print(mystr.find(<span class="string">&#x27;and&#x27;</span>, <span class="number">15</span>, <span class="number">30</span>))  <span class="comment"># 23</span></span><br><span class="line">print(mystr.find(<span class="string">&#x27;ands&#x27;</span>))  <span class="comment"># -1</span></span><br><span class="line"></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="string">index()：检测某个子串是否包含在这个字符串中，如果在返回这个子串开始的位置下标，否则则报异常。</span></span><br><span class="line"><span class="string">开始和结束位置下标可以省略，表示在整个字符串序列中查找。</span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"></span><br><span class="line">mystr = <span class="string">&quot;hello world and itcast and itheima and Python&quot;</span></span><br><span class="line">print(mystr.index(<span class="string">&#x27;and&#x27;</span>))  <span class="comment"># 12</span></span><br><span class="line">print(mystr.index(<span class="string">&#x27;and&#x27;</span>, <span class="number">15</span>, <span class="number">30</span>))  <span class="comment"># 23</span></span><br><span class="line">print(mystr.index(<span class="string">&#x27;ands&#x27;</span>))  <span class="comment"># 报错</span></span><br><span class="line"></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="string">所谓修改字符串，指的就是通过函数的形式修改字符串中的数据。</span></span><br><span class="line"><span class="string">字符串序列.replace(旧子串, 新子串, 替换次数)</span></span><br><span class="line"><span class="string"></span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="comment"># 结果：hello world he itcast he itheima he Python</span></span><br><span class="line">print(mystr.replace(<span class="string">&#x27;and&#x27;</span>, <span class="string">&#x27;he&#x27;</span>, <span class="number">10</span>))</span><br><span class="line"></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="string">- 下标</span></span><br><span class="line"><span class="string">  - 计算机为数据序列中每个元素分配的从0开始的编号</span></span><br><span class="line"><span class="string">- 切片</span></span><br><span class="line"><span class="string"></span></span><br><span class="line"><span class="string">``` python</span></span><br><span class="line"><span class="string">序列名[开始位置下标:结束位置下标:步长]</span></span><br><span class="line"><span class="string">```</span></span><br><span class="line"><span class="string"></span></span><br><span class="line"><span class="string">- 常用操作方法</span></span><br><span class="line"><span class="string">  - find()</span></span><br><span class="line"><span class="string">  - index()</span></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="string">列表：</span></span><br><span class="line"><span class="string">[数据1, 数据2, 数据3, 数据4......]</span></span><br><span class="line"><span class="string">列表的作用是一次性存储多个数据，程序员可以对这些数据进行的操作有：增、删、改、查。</span></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line">name_list = [<span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;Lily&#x27;</span>, <span class="string">&#x27;Rose&#x27;</span>]</span><br><span class="line"></span><br><span class="line">print(name_list[<span class="number">0</span>])  <span class="comment"># Tom</span></span><br><span class="line">print(name_list[<span class="number">1</span>])  <span class="comment"># Lily</span></span><br><span class="line">print(name_list[<span class="number">2</span>])  <span class="comment"># Rose</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># index()：返回指定数据所在位置的下标 。</span></span><br><span class="line"><span class="comment"># 列表序列.index(数据, 开始位置下标, 结束位置下标)</span></span><br><span class="line">print(name_list.index(<span class="string">&#x27;Lily&#x27;</span>, <span class="number">0</span>, <span class="number">2</span>))  <span class="comment"># 1</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># count()：统计指定数据在当前列表中出现的次数。</span></span><br><span class="line">print(name_list.count(<span class="string">&#x27;Lily&#x27;</span>))  <span class="comment"># 1</span></span><br><span class="line"><span class="comment"># len()：访问列表长度，即列表中数据的个数。</span></span><br><span class="line">print(<span class="built_in">len</span>(name_list))  <span class="comment"># 3</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># append()：列表结尾追加数据。</span></span><br><span class="line">name_list.append(<span class="string">&#x27;xiaoming&#x27;</span>)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 结果：[&#x27;Tom&#x27;, &#x27;Lily&#x27;, &#x27;Rose&#x27;, &#x27;xiaoming&#x27;]</span></span><br><span class="line">print(name_list)</span><br><span class="line"><span class="comment"># 如果append()追加的数据是一个序列，则追加整个序列到列表</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># extend()：列表结尾追加数据，如果数据是一个序列，则将这个序列的数据逐一添加到列表。</span></span><br><span class="line"></span><br><span class="line">name_list = [<span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;Lily&#x27;</span>, <span class="string">&#x27;Rose&#x27;</span>]</span><br><span class="line"></span><br><span class="line">name_list.extend(<span class="string">&#x27;xiaoming&#x27;</span>)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 结果：[&#x27;Tom&#x27;, &#x27;Lily&#x27;, &#x27;Rose&#x27;, &#x27;x&#x27;, &#x27;i&#x27;, &#x27;a&#x27;, &#x27;o&#x27;, &#x27;m&#x27;, &#x27;i&#x27;, &#x27;n&#x27;, &#x27;g&#x27;]</span></span><br><span class="line">print(name_list)</span><br><span class="line">name_list.extend([<span class="string">&#x27;xiaoming&#x27;</span>])</span><br><span class="line">print(name_list)</span><br><span class="line"></span><br><span class="line"><span class="comment"># insert()：指定位置新增数据。</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 列表序列.insert(位置下标, 数据)</span></span><br><span class="line"></span><br><span class="line">name_list = [<span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;Lily&#x27;</span>, <span class="string">&#x27;Rose&#x27;</span>]</span><br><span class="line"></span><br><span class="line">name_list.insert(<span class="number">1</span>, <span class="string">&#x27;xiaoming&#x27;</span>)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 结果：[&#x27;Tom&#x27;, &#x27;xiaoming&#x27;, &#x27;Lily&#x27;, &#x27;Rose&#x27;]</span></span><br><span class="line">print(name_list)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 删除</span></span><br><span class="line"><span class="comment"># del 目标</span></span><br><span class="line"></span><br><span class="line">name_list = [<span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;Lily&#x27;</span>, <span class="string">&#x27;Rose&#x27;</span>]</span><br><span class="line"></span><br><span class="line"><span class="comment"># 结果：报错提示：name &#x27;name_list&#x27; is not defined</span></span><br><span class="line"><span class="keyword">del</span> name_list</span><br><span class="line">print(name_list)</span><br><span class="line"></span><br><span class="line">name_list = [<span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;Lily&#x27;</span>, <span class="string">&#x27;Rose&#x27;</span>]</span><br><span class="line"></span><br><span class="line"><span class="comment"># 删除指定数据</span></span><br><span class="line"><span class="keyword">del</span> name_list[<span class="number">0</span>]</span><br><span class="line"></span><br><span class="line"><span class="comment"># 结果：[&#x27;Lily&#x27;, &#x27;Rose&#x27;]</span></span><br><span class="line">print(name_list)</span><br><span class="line"></span><br><span class="line"><span class="comment"># pop()：删除指定下标的数据(默认为最后一个)，并返回该数据。</span></span><br><span class="line"><span class="comment"># 列表序列.pop(下标)</span></span><br><span class="line">name_list = [<span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;Lily&#x27;</span>, <span class="string">&#x27;Rose&#x27;</span>]</span><br><span class="line"></span><br><span class="line">del_name = name_list.pop(<span class="number">1</span>)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 结果：Lily</span></span><br><span class="line">print(del_name)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 结果：[&#x27;Tom&#x27;, &#x27;Rose&#x27;]</span></span><br><span class="line">print(name_list)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 列表序列.sort( key=None, reverse=False)</span></span><br><span class="line"></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="string">列表序列.sort( key=None, reverse=False)</span></span><br><span class="line"><span class="string">如果定义的元组只有一个数据，那么这个数据后面也好添加逗号，否则数据类型为唯一的这个数据的数据类型</span></span><br><span class="line"><span class="string">元组数据不支持修改，只支持查找</span></span><br><span class="line"><span class="string">index()：查找某个数据，如果数据存在返回对应的下标，否则报错，语法和列表、字符串的index方法相同</span></span><br><span class="line"><span class="string">count()：统计某个数据在当前元组出现的次数。</span></span><br><span class="line"><span class="string">len()：统计元组中数据的个数。 </span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="comment"># 多个数据元组</span></span><br><span class="line">t1 = (<span class="number">10</span>, <span class="number">20</span>, <span class="number">30</span>)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 单个数据元组</span></span><br><span class="line">t2 = (<span class="number">10</span>,)</span><br><span class="line"></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="string">字典特点：</span></span><br><span class="line"><span class="string"></span></span><br><span class="line"><span class="string">- 符号为==大括号==</span></span><br><span class="line"><span class="string">- 数据为==键值对==形式出现</span></span><br><span class="line"><span class="string">- 各个键值对之间用==逗号==隔开</span></span><br><span class="line"><span class="string">一般称冒号前面的为键(key)，简称k；冒号后面的为值(value)，简称v。</span></span><br><span class="line"><span class="string">&gt; 字典为可变类型。</span></span><br><span class="line"><span class="string">del() / del：删除字典或删除字典中指定键值对。</span></span><br><span class="line"><span class="string">clear()：清空字典</span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="comment"># 有数据字典</span></span><br><span class="line">dict1 = &#123;<span class="string">&#x27;name&#x27;</span>: <span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;age&#x27;</span>: <span class="number">20</span>, <span class="string">&#x27;gender&#x27;</span>: <span class="string">&#x27;男&#x27;</span>&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment"># 空字典</span></span><br><span class="line">dict2 = &#123;&#125;</span><br><span class="line"></span><br><span class="line">dict3 = <span class="built_in">dict</span>()</span><br><span class="line"></span><br><span class="line">dict1[<span class="string">&#x27;name&#x27;</span>] = <span class="string">&#x27;Rose&#x27;</span></span><br><span class="line"><span class="comment"># 结果：&#123;&#x27;name&#x27;: &#x27;Rose&#x27;, &#x27;age&#x27;: 20, &#x27;gender&#x27;: &#x27;男&#x27;&#125;</span></span><br><span class="line">print(dict1)</span><br><span class="line"></span><br><span class="line">dict1[<span class="string">&#x27;id&#x27;</span>] = <span class="number">110</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># &#123;&#x27;name&#x27;: &#x27;Rose&#x27;, &#x27;age&#x27;: 20, &#x27;gender&#x27;: &#x27;男&#x27;, &#x27;id&#x27;: 110&#125;</span></span><br><span class="line">print(dict1)</span><br><span class="line"></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="string">字典序列.get(key, 默认值)</span></span><br><span class="line"><span class="string">如果当前查找的key不存在则返回第二个参数(默认值)，如果省略第二个参数，则返回None。</span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line">dict1 = &#123;<span class="string">&#x27;name&#x27;</span>: <span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;age&#x27;</span>: <span class="number">20</span>, <span class="string">&#x27;gender&#x27;</span>: <span class="string">&#x27;男&#x27;</span>&#125;</span><br><span class="line">print(dict1.get(<span class="string">&#x27;name&#x27;</span>))  <span class="comment"># Tom</span></span><br><span class="line">print(dict1.get(<span class="string">&#x27;id&#x27;</span>, <span class="number">110</span>))  <span class="comment"># 110</span></span><br><span class="line">print(dict1.get(<span class="string">&#x27;id&#x27;</span>))  <span class="comment"># None</span></span><br><span class="line"></span><br><span class="line"><span class="comment">#  keys()</span></span><br><span class="line">dict1 = &#123;<span class="string">&#x27;name&#x27;</span>: <span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;age&#x27;</span>: <span class="number">20</span>, <span class="string">&#x27;gender&#x27;</span>: <span class="string">&#x27;男&#x27;</span>&#125;</span><br><span class="line">print(dict1.keys())  <span class="comment"># dict_keys([&#x27;name&#x27;, &#x27;age&#x27;, &#x27;gender&#x27;])</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># values()</span></span><br><span class="line">print(dict1.values())  <span class="comment"># dict_values([&#x27;Tom&#x27;, 20, &#x27;男&#x27;])</span></span><br><span class="line">dict1 = &#123;<span class="string">&#x27;name&#x27;</span>: <span class="string">&#x27;Tom&#x27;</span>, <span class="string">&#x27;age&#x27;</span>: <span class="number">20</span>, <span class="string">&#x27;gender&#x27;</span>: <span class="string">&#x27;男&#x27;</span>&#125;</span><br><span class="line">print(dict1.items())  <span class="comment"># dict_items([(&#x27;name&#x27;, &#x27;Tom&#x27;), (&#x27;age&#x27;, 20), (&#x27;gender&#x27;, &#x27;男&#x27;)])</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line"><span class="string">创建集合使用`&#123;&#125;`或`set()`， 但是如果要创建空集合只能使用`set()`，因为`&#123;&#125;`用来创建空字典。</span></span><br><span class="line"><span class="string">&#x27;&#x27;&#x27;</span></span><br><span class="line">s3 = <span class="built_in">set</span>(<span class="string">&#x27;abcdefg&#x27;</span>)</span><br><span class="line">print(s3)</span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="string">1. 集合可以去掉重复数据；</span></span><br><span class="line"><span class="string">2. 集合数据是无序的，故不支持下标</span></span><br><span class="line"><span class="string">增加数据add()</span></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line">s1 = &#123;<span class="number">10</span>, <span class="number">20</span>&#125;</span><br><span class="line">s1.add(<span class="number">100</span>)</span><br><span class="line">s1.add(<span class="number">10</span>)</span><br><span class="line">print(s1)  <span class="comment"># &#123;100, 10, 20&#125;</span></span><br><span class="line"><span class="comment"># 因为集合有去重功能，所以，当向集合内追加的数据是当前集合已有数据的话，则不进行任何操作。</span></span><br><span class="line"><span class="comment"># update(), 追加的数据是序列。</span></span><br><span class="line"></span><br><span class="line">s1 = &#123;<span class="number">10</span>, <span class="number">20</span>&#125;</span><br><span class="line"><span class="comment"># s1.update(100)  # 报错</span></span><br><span class="line">s1.update([<span class="number">100</span>, <span class="number">200</span>])</span><br><span class="line">s1.update(<span class="string">&#x27;abc&#x27;</span>)</span><br><span class="line">print(s1)</span><br><span class="line"></span><br><span class="line"><span class="comment"># remove()，删除集合中的指定数据，如果数据不存在则报错。</span></span><br><span class="line"><span class="comment"># discard()，删除集合中的指定数据，如果数据不存在也不会报错。</span></span><br><span class="line"><span class="comment"># pop()，随机删除集合中的某个数据，并返回这个数据。</span></span><br><span class="line"></span><br><span class="line">s1 = &#123;<span class="number">10</span>, <span class="number">20</span>, <span class="number">30</span>, <span class="number">40</span>, <span class="number">50</span>&#125;</span><br><span class="line"></span><br><span class="line">del_num = s1.pop()</span><br><span class="line">print(del_num)</span><br><span class="line">print(s1)</span><br><span class="line"></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="string">常见操作</span></span><br><span class="line"><span class="string"></span></span><br><span class="line"><span class="string">- 增加数据</span></span><br><span class="line"><span class="string">  - add()</span></span><br><span class="line"><span class="string">  - update()</span></span><br><span class="line"><span class="string">- 删除数据</span></span><br><span class="line"><span class="string">  - remove()</span></span><br><span class="line"><span class="string">  - discard()</span></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="string">| 运算符 |      描述      |      支持的容器类型      |</span></span><br><span class="line"><span class="string">| :----: | :------------: | :----------------------: |</span></span><br><span class="line"><span class="string">|   +    |      合并      |    字符串、列表、元组    |</span></span><br><span class="line"><span class="string">|   *    |      复制      |    字符串、列表、元组    |</span></span><br><span class="line"><span class="string">|   in   |  元素是否存在  | 字符串、列表、元组、字典 |</span></span><br><span class="line"><span class="string">| not in | 元素是否不存在 | 字符串、列表、元组、字典 |</span></span><br><span class="line"><span class="string"></span></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="comment"># 1. 字符串</span></span><br><span class="line">str1 = <span class="string">&#x27;aa&#x27;</span></span><br><span class="line">str2 = <span class="string">&#x27;bb&#x27;</span></span><br><span class="line">str3 = str1 + str2</span><br><span class="line">print(str3)  <span class="comment"># aabb</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># 2. 列表</span></span><br><span class="line">list1 = [<span class="number">1</span>, <span class="number">2</span>]</span><br><span class="line">list2 = [<span class="number">10</span>, <span class="number">20</span>]</span><br><span class="line">list3 = list1 + list2</span><br><span class="line">print(list3)  <span class="comment"># [1, 2, 10, 20]</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 3. 元组</span></span><br><span class="line">t1 = (<span class="number">1</span>, <span class="number">2</span>)</span><br><span class="line">t2 = (<span class="number">10</span>, <span class="number">20</span>)</span><br><span class="line">t3 = t1 + t2</span><br><span class="line">print(t3)  <span class="comment"># (10, 20, 100, 200)</span></span><br><span class="line"><span class="comment"># 1. 字符串</span></span><br><span class="line">print(<span class="string">&#x27;-&#x27;</span> * <span class="number">10</span>)  <span class="comment"># ----------</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 2. 列表</span></span><br><span class="line">list1 = [<span class="string">&#x27;hello&#x27;</span>]</span><br><span class="line">print(list1 * <span class="number">4</span>)  <span class="comment"># [&#x27;hello&#x27;, &#x27;hello&#x27;, &#x27;hello&#x27;, &#x27;hello&#x27;]</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># 3. 元组</span></span><br><span class="line">t1 = (<span class="string">&#x27;world&#x27;</span>,)</span><br><span class="line">print(t1 * <span class="number">4</span>)  <span class="comment"># (&#x27;world&#x27;, &#x27;world&#x27;, &#x27;world&#x27;, &#x27;world&#x27;)</span></span><br><span class="line"></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="string">len()计算容器中元素个数</span></span><br><span class="line"><span class="string">del 或 del()删除</span></span><br><span class="line"><span class="string">max()返回容器中元素最大值</span></span><br><span class="line"><span class="string">min()返回容器中元素最小值</span></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br><span class="line"><span class="string">数据类型转换</span></span><br><span class="line"><span class="string"></span></span><br><span class="line"><span class="string">- tuple()</span></span><br><span class="line"><span class="string">- list()</span></span><br><span class="line"><span class="string">- set()</span></span><br><span class="line"><span class="string">&quot;&quot;&quot;</span></span><br></pre></td></tr></table></figure>

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